There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 146185 | M. Clapham | Barda II (PIN collection 1361) Kungurian - Permian 2 - Russian Federation | Martynov (1930) |
| 157042 | M. Clapham | Chekarda, Sylva River (Mauer collection) (= PIN collection 1317 / coll. Mauer 1928) Kungurian - Permian 2 - Russian Federation | Martynov (1930) |